Slowing down because of rising heat is the expected response in any summer heat wave. But in a week like this one, where high temperatures fanned across the country, sizzling toward 100 degrees F. from Texas to Boston, some things also go up. Here are four things to expect to rise along with our desire to stay indoors and beat the heat.

Malls are high on the list of places where people frequent for free air conditioning outside the home. So it’s not a surprise that retail sales jump during heat waves, especially on goods related to keeping cool.

Air conditioner and fan sales increased 25 percent in June compared with the same month last year, according to Planalytics, a market research firm in Berwyn, Pa., that specializes on consumer buying power during extreme weather. Increases in similar expenditures, such as water and sport-drink sales (20 percent) and sun-care items (15 percent), followed accordingly.